micawber

A person who is poor but eternally optimistic, believing that "something will turn up", like the fictional character Wilkins Micawber in the 1850 Charles Dickens novel David Copperfield.

Alternative letter-case form of Micawber; a person of modest income or background who remains optimistic that their situation will improve. [A person who is poor but eternally optimistic, believing that "something will turn up", like the fictional character Wilkins Micawber in the 1850 Charles Dickens novel David Copperfield.]

To be optimistic that "something will turn up", in the style of Wilkins Micawber.